rs485 to ethernet gateway, modbus rtu to ethernet gateway

System Feature

• Adopted highly integrated industrial 32-bit ARM MCU
• Reliable performance with built-in double watchdog, 24×7 operation
• With signal filtering mechanisms
• Support automatic network reconnection and data re-send
• Update RTC automatically or manually, clock source support Sms, NTP, CwtIO Server
• Can set multiple timers(second, minute, day, week, month) to execute actions, e.g. output, upload data, change setting
• Support Interlock programming, Event trigger
• Provide configure software, visual programming, over 100 parameters can be set
• Optional exterior rechargable battery for 8-20 hours working when power lost

DI feature

• Trigger dry contact(NO or NC)

DO(T) feature

• Relay drivable output(drive voltage=power supply voltage, Drive current≤500mA)
• DO can be activated by remote or local schedule
• Remember status when power lost

DO(K) feature

• Relay NO output(load: 2A / 125VAC,220VDC)
• DO can be activated by remote or local schedule
• Remember status when power lost

AI feature

• 4-20mA (option: 0-5V) in, Sampling frequency: 33Hz, 10-bit precision)
• Transduce 4-20mA(0-5V) to actual value
• Support offset and gain, alarm parameters, upload data setting
• Detect connect or disconnect to alarm

SMS feature

• Preset 10 phone numbers (support distribute authority to receive sms)
• Sms alarm when any IO channel triggered or out of preset normal range
• Editable alarm and recover sms with time stamp
• Can send sms command to request any channel status or value
• Control output via sms command
• Can set interval to report IO channel's status or value by sms
• Remote setting via sms commands
• Forward simcard overdue sms to admin
• Power lost and recover alarm by sending sms

Wireless network communication

• Option network: cellular(2g/3g/4g) or Wi-Fi
• TCP/IP connect at most 4 servers(support Static IP address or domain)
• Events(e.g. alarm, timer) trigger upload data
• Communicate with server by optional Cwt_IO, Modbus TCP, http post protocol
• Support two-way data transparent transmission with RS485 or RS232

Modbus feature

• Can work as a modbus master to poll salve over RS485
• As a RS485 I O module to be polled by modbus master
• Support Modbus RTU to TCP convert over Ethernet or GPRS/3G